10) In the final section of the passage, we learn how Ferris wheels "keep reaching higher and
higher." This seems to be a common trend among the developers of modern technology. What
makes us want to continually strive to create something bigger and better? Is this good? Discuss.

Explanation:

I think humans feel the need to be the best, to have the best. It can be a good thing because we advance in the modern world because of this. But also it can be a bad thing because we can bring people down in order to be above them.

a. "to practice" is the best phrase to complete the sentence.

explanation:

during the summer, she likes to practice her soccer skills so that she is ready to play in the fall.

(note that : all the other options "the practicing of", "practice for" and "to do a practice on" are inappropriate as they make the sentence grammatically incorrect.)